Oxidation, sulfidation and hot corrosion of intermetallic compound Fe3Al at 605°C and 800°C

Lee, W.H.; Lin, Rungtai

doi:10.1016/s0254-0584(98)00280-6

Cited by 31 publications

(7 citation statements)

References 21 publications

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“…(1) the partial pressures of sulfur can be adjusted in the range: 10 1 -10 -7 Pa without great difficulty. These values correspond roughly to the partial pressures to be expected in oil refineries and coal gasification plants [4].…”

Section: Introductionsupporting

confidence: 76%

Presentation, Calibration and First Experiments Using a New Thermobalance for Experiments in Sulfur Vapor Atmospheres

Strehl¹,

Chevalier

Larpin

2004

MSF

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Sulfur is one of the most aggressive agents in high temperature process atmospheres. To study the reaction of up-to-date high temperature materials, such as intermetallics, in sulfur, a new apparatus has been built at the LRRS in Dijon. The partial pressure of sulfur is controlled by the temperature of a sulfur bath and, thus, the reaction is not influenced by the presence of hydrogen, as occurs in standard equipment employing H 2 /H 2 S mixtures. Helium is used as carrier gas and also protects the measuring unit of the thermobalance. Hence, high resolution thermogravimetric experiments can be carried out. The experimental set-up and some calibration measurements in the temperature range from 800 °C to 1000 °C are presented. Pure manganese has been chosen as reference material because its behaviour in pure sulfur atmospheres is well known.

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Section: Introductionsupporting

confidence: 76%

Presentation, Calibration and First Experiments Using a New Thermobalance for Experiments in Sulfur Vapor Atmospheres

Strehl¹,

Chevalier

Larpin

2004

MSF

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“…The α-Al 2 O 3 maintains its desirable oxidation resistance over a wide range of temperatures and in steam environments [119][120][121][122][123]. Increasing the Al concentration enhances the protectivity of the oxide layer at high temperatures [17,18].…”

Section: Oxidation Resistancementioning

confidence: 99%

A Review on the Properties of Iron Aluminide Intermetallics

2016

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Iron aluminides have been among the most studied intermetallics since the 1930s, when their excellent oxidation resistance was first noticed. Their low cost of production, low density, high strength-to-weight ratios, good wear resistance, ease of fabrication and resistance to high temperature oxidation and sulfurization make them very attractive as a substitute for routine stainless steel in industrial applications. Furthermore, iron aluminides allow for the conservation of less accessible and expensive elements such as nickel and molybdenum. These advantages have led to the consideration of many applications, such as brake disks for windmills and trucks, filtration systems in refineries and fossil power plants, transfer rolls for hot-rolled steel strips, and ethylene crackers and air deflectors for burning high-sulfur coal. A wide application for iron aluminides in industry strictly depends on the fundamental understanding of the influence of (i) alloy composition; (ii) microstructure; and (iii) number (type) of defects on the thermo-mechanical properties. Additionally, environmental degradation of the alloys, consisting of hydrogen embrittlement, anodic or cathodic dissolution, localized corrosion and oxidation resistance, in different environments should be well known. Recently, some progress in the development of new micro-and nano-mechanical testing methods in addition to the fabrication techniques of micro-and nano-scaled samples has enabled scientists to resolve more clearly the effects of alloying elements, environmental items and crystal structure on the deformation behavior of alloys. In this paper, we will review the extensive work which has been done during the last decades to address each of the points mentioned above.

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“…The tendency of Fe 3 Al to form Al 2 O 3 at the presence of sulphur, even in low partial pressures of oxygen, is reported in the literature. However, Al 2 S 3 is formed if the iron aluminide is subjected to pure SO 2 [20].…”

Section: Discussionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Omranian-Mohammadi¹,

Raiszadeh²,

Shahversdi³

2020

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In this investigation the surface of an aluminized sample of plain carbon steel was melted and alloyed using a tingsten inert gas (TIG) welding process to produce iron-aluminide intermetallic phases on the surface. The produced coating was then characterized by SEM and EDS and its high-temperature properties in O 2 + 1%SO 2 gas were examined. The results showed that the Fe 3 Al coating produced could protect the substrate as it was subjected to the corroding gases at 700 o C due to the formation of an alumina layer between the substrate and an outer layer of Fe 2 O 3 . At 900 o C, the coating could only protect the substrate for 64 h. The lack of further protection at this temperature is attributed to the decrease in the protective properties of alumina with an increase in its temperature and the lack of presence of enough Al atoms in the coating for the repair of the defects formed in the alumina layer.

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Oxidation, sulfidation and hot corrosion of intermetallic compound Fe3Al at 605°C and 800°C

Cited by 31 publications

References 21 publications

Presentation, Calibration and First Experiments Using a New Thermobalance for Experiments in Sulfur Vapor Atmospheres

Presentation, Calibration and First Experiments Using a New Thermobalance for Experiments in Sulfur Vapor Atmospheres

A Review on the Properties of Iron Aluminide Intermetallics

Archives of Metallurgy and Materials

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